MEXICO CITY (Reuters) - One of Mexico's most prominent journalists, whose team revealed a conflict-of-interest scandal ensnaring President Enrique Pena Nieto last year, has been fired, her employer MVS Radio said on Sunday.

Late last year, reporter Carmen Aristegui exposed that Pena Nieto's wife, Angelica Rivera, was in the process of acquiring a luxury house from a government contractor that won millions of dollars in state business.